daitong

在matlab环境下，实现一个雷达仿真程序。(in Matlab environment, the realization of a radar simulation.)

应用matlab语言，应用lambert变轨实现地球到火星的发射窗口的轨道寻优。内涵lambert变轨功能，星历计算等多个函数文件(Application of matlab language, application lambert achieve orbit the Earth to orbit Mars launch window optimization. Connotation lambert orbit function, ephemeris calculations and other functions file)

HMMBOX, version 3.2, William Penny, Imperial College, Feb 1999 Matlab toolbox for Hidden Markov Models(HMMBOX, version 3.2, William Penny, Imperial College, Feb 1999 Matlab toolbox for Hidden Markov Model s)

matlab application for nonlinear partial differential evolution equations. is a matlab application for the numerical study of some nonlinear partial differential evolution equations

这是一个彩色图片转换为弧度图片转换的程序。可将灰度图片进行任意部分的存储，并存储在给定位置。(This is a process of changing color image into gray image. In the sanmetime ,it can srore any part of the gray image into the given place.)

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APSK在多径信道下的仿真，给出了具体的信道模型，画出误码率曲线(APSK simulation in multipath channel, given the specific channel model, draw BER curves)

经典jacobi算法求矩阵特征值，matlab程序设计(Classical Jacobi matrix algorithm for eigenvalues, matlab programming)

不错的粒子群程序，对初学者很有帮助，有完整的注释，通过了测试，可以很好的运行，希望对初学者有帮助。(Good PSO program, useful for beginners, complete notes, passed the test can be a good run, and I hope to help beginners.)

用costas环实现载波同步。假设发送信号载波频率为3.563Mhz，本地初始频率为3.5628Mhz。程序中直接给出了环路滤波器的参数C1,C2。(this is synchoronization on time recovery basing on matlab)